Question

multiply,
(w+f)(w^2-wf+f^2) need help, i got multiple different answers. like w^3+f^3 and w^4+fw^3
so i'm a little confused now. thank you!

Answer 1

W^3 + f^3

Answer 2

thank you!

Answer 3

(w+f)(w^2-wf+f^2)
w^3 - w^2f + w f^2 + w^2 f - w f^2 + f^3
(- w^2f & w^2 f cancel out
+w f^2 & - w f^2 cancel out )

Answer 4

so W ^3 + f^3 is the answer

you're Welcome :)

Answer 5

this is called sum of two cubed identity
x^3+y^3 = (x+y)(x^2-xy+y^2)

Answer 6

good